The Department of Veterans Affairs said it is on track to process 1 million disability claims this year.

With the war in Iraq over and the one in Afghanistan winding down, the VA is sorting through a backlog of more than 860,000 disability claims from American veterans. More than a quarter of those vets -- 228,000 -- have been waiting for a year or more.

Rioux has been trying to get his disability claim fully processed since January 2011, shortly after he returned from Afghanistan.

The litany of delays includes lost paperwork, long wait times for appointments and erroneous lab results. At one point, a doctor prescribed him medication for a bladder infection he didn't have; he'd never given as much as a urine sample.VA official: Backlog 'unacceptable'